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Finding the Fourth Proportional to 1,235.52, 1,844.19 and 1,091.34

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Solution

The fourth proportional to 1,235.52, 1,844.19 and 1,091.34 is: 1,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.52 : 1,844.19 = 1,091.34 : x
  2. Step 2: Convert to fraction form
    1,235.52/1,844.19 = 1,091.34/x
  3. Step 3: Cross multiply
    1,235.52x = 1,844.19 × 1,091.34
  4. Step 4: Simplify right side
    1,235.52x = 2,012,638.31
  5. Step 5: Solve for x
    x = 2,012,638.31/1,235.52
  6. Step 6: Final answer
    x = 1,628.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.